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polet [3.4K]
3 years ago
15

A culture started with 1,000 bacteria. After 6

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
6 0

Answer:

1,500 bacteria.

Step-by-step explanation:

I don't know what P=Aekt means but I understand the rest:

Hour 0: 1,000 bacteria

Hour 6: 1,300 bacteria

We can conclude from this evidence that it takes 6 hours to grow 300 new bacteria.

Let's use a ratio

new bacteria : hours

      300          :     6

        50          :      1

       500         :     10

So we get 500 new bacteria after 10 hours. Using our original population of 1,000 and our new added members, we get 1,500 bacteria at Hour 10.

Naddik [55]3 years ago
3 0

Answer:

1350

Step-by-step explanation:

1000 to 1100 is an increase of 100 bacteria per 6 hours

100/6 = 16.67 bacteria per hour

16.67 * 15 hours = 250

Total bacteria should be 1100+250= 1350

hope this helps :D

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3 years ago
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A square garden plot measures 44 yards on each side. What is the length of the diagonal of this plot?
gogolik [260]

Answer:

  44√2 yards ≈ 62.23 yards

Step-by-step explanation:

You can uses the Pythagorean theorem to find the length of the diagonal. It is the hypotenuse of a right triangle with side lengths of 44 yards. Then the diagonal measure is ...

  d = √(44² +44²) = √(44² × 2) = 44√2

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8 0
4 years ago
The length of a living room is 12 feet and its width is 1012 feet. The length of the room is being expanded by x feet. Choose an
Ivanshal [37]

Answer:

Option C. 10.5(12 + x) square feet

Option E. (126 + 10.5x) square feet

Step-by-step explanation:

step 1

Find the area of the original living room

we know that

The area of the original living room is equal to

A=LW

we have

L=12\ ft\\W=10\frac{1}{2}\ ft=10.5\ ft

substitute

A=(12)(10.5)=126\ ft^2

step 2

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so

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The new area is

A=10.5(12+x)\ ft^2

The expanded form of the expression is

Apply distributive property

A=10.5(12)+10.5(x)\\A=(126+10.5x)\ ft^2

6 0
4 years ago
Insert <, > or = to make the sentence true. -1/3 -2/5
pishuonlain [190]
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7 0
3 years ago
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Lee spent c cents to buy five pears. In terms of c and d, how many pears could Lee
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The expression that can be used to represent the number of pears that can be bought with d dollars is d(c/5)

<h3>How many pears can be bought with d dollars?</h3>

The first step is to determine the price of one pear. This can be determined by dividing c cents by 5 pears.

Cost of one pear = c/d

The second step is to multiply the cost of one pear by d dollars:  d(c/5)

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